mpegvideo is back

Originally committed as revision 2507 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/allcodecs.c

@@ -102,6 +102,7 @@ void avcodec_register_all(void)
 #endif
     register_avcodec(&mpeg1video_decoder);
     register_avcodec(&mpeg2video_decoder);
+    register_avcodec(&mpegvideo_decoder);
 #ifdef HAVE_XVMC
     register_avcodec(&mpeg_xvmc_decoder);
 #endif

libavcodec/avcodec.h

@@ -1523,6 +1523,7 @@ extern AVCodec wmv1_decoder;
 extern AVCodec wmv2_decoder;
 extern AVCodec mpeg1video_decoder;
 extern AVCodec mpeg2video_decoder;
+extern AVCodec mpegvideo_decoder;
 extern AVCodec mpeg_xvmc_decoder;
 extern AVCodec h263i_decoder;
 extern AVCodec flv_decoder;

libavcodec/mpeg12.c

@@ -2655,6 +2655,20 @@ AVCodec mpeg2video_decoder = {
     .flush= ff_mpeg_flush,
 };
 
+//legacy decoder
+AVCodec mpegvideo_decoder = {
+    "mpegvideo",
+    CODEC_TYPE_VIDEO,
+    CODEC_ID_MPEG2VIDEO,
+    sizeof(Mpeg1Context),
+    mpeg_decode_init,
+    NULL,
+    mpeg_decode_end,
+    mpeg_decode_frame,
+    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED,
+    .flush= ff_mpeg_flush,
+};
+
 #ifdef HAVE_XVMC
 static int mpeg_mc_decode_init(AVCodecContext *avctx){
     Mpeg1Context *s;